baber/WOPTO huggingface dataset:
Patent GB-856908-A (GB)
Title: Improvements in or relating to alternator-rectifier generating systems
Inventor: ORVIS ELMER PAUL
IPC: H02J7/22
Filed: 1959-05-12
Abstract: 856,908. Automatic voltage control systems; supply systems depending on variable-speed generators. LEECE-NEVILLE CO. May 12, 1959, No. 16276/59. Class 38 (4). In a system in which a 3-phase star-connected alternator supplies a load through a full-wave rectifier, the field is connected, via a vibrating contact regulator between the star point and one side of the rectifier so as to reduce the voltage across the contacts of the regulator. The alternator 11 supplies a load including a battery 35 through a full-wave rectifier 10 and a load relay 41. The alternator field 18 is connected between the star point of the main windings and the negative side of the rectifier 10 by the contacts of voltage and current regulators 39, 40. The coil of the load relay 41 is connected across the other half of the rectifier 10, between the star point and the positive. In a modification, Fig. 5 (not shown), the field winding is also connected between star point and the positive side of the rectifier.
Patent GB-711419-A (GB)
Title: Improvements relating to syphons for use in syphonic flushing cisterns
Inventor: PIMBLE ARTHUR VICTOR
IPC: E03D1/08
Filed: 1952-06-28
Abstract: 711,419. Syphonic flushing-cisterns. TWYFORDS, Ltd. Feb. 25, 1953 [June 28, 1952], No. 16341/52, Class 26 In a syphon for closet &c. flushing cisterns comprising a body 1 with an inverted-U passage and a plunger 6 movable in an enlarged part 5 of the inlet leg to lift water and initiate syphonic action, the plunger comprises an apertured plate 9 and a flexible disc 15 slit radially to form flexible flaps and which disc, when flat, has a close fit at its outer edge with the part 5 but can flex upwardly to allow upward flow of water. A cup-shaped washer 23 and rubber washer 22 seal the aperture 21 through which the operating rod 7 passes, under the weight of water in the washer 23.
Patent GB-1352463-A (GB)
Title: Catalytic converter for the purification of exhaust gasses emanating from an internal combustion engine
IPC: F01N3/34
Filed: 1972-04-10
Abstract: 1352463 Purifying exhaust gases FORD MOTOR CO Ltd 10 April 1972 [26 April 1971] 16380/72 Heading F1B A catalytic convertor for the purification of I.C. engine exhaust gases comprises a housing 12, having a inlet 18 and outlet 20, which contains baffles 22, 24 to retain a particulate catalytic material 26 and a perforated flow control baffle 28 spaced upstream of baffle 22 to straighten and reduce turbulence in the gas flow. The openings in the baffle 28 are uniformly spaced and should occupy about 25% to 45%, preferably 35%, of the total surface area. The openings may be circular and should preferably be less than 1/8 " in diameter or slots with a maximum width of 0À050" and a length between 0À2" to 0À4". The slots may be vertically aligned or alternately offset. The baffles 22, 24, 28 may be made of stainless steel and the openings may have a flange surrounding them, the flange being arranged parallel to the direction of flow. The invention is also described with reference to the convertor described and claimed in Appl. No. 10391/72.
Patent GB-801723-A (GB)
Title: Purification of glycols by distillation
Inventor: ACKROYD NORVIK
Filed: 1955-06-08
Abstract: Glycols are purified by adding water to the crude glycol in a quantity at least 2 per cent by weight of the glycol, heating the mixture, then distilling off the water, and finally distilling over the purified glycol.  The products are very thermally-stable with regard to colour, and are suitable for use in the synthesis of aromatic linear polyesters.  The glycol with the added water is preferably heated, under superatmospheric pressure if necessary, to a temperature above 200 DEG  C. before undertaking the distillation step.  In an example, ethylene glycol obtained as a by-product from the manufacture of polyethylene terephthalate, which is unsuitable in its crude state for further polyester production, is heated under superatmospheric pressure to 210 DEG  C. with 50 per cent of its weight of water until a dark-coloured solid is deposited.  The dilute glycol is then subjected to distillation at a pressure of 300 mm. Hg., using a fractionating column.  After removing a low-boiling fraction, water is distilled off at a temperature of 75 DEG  to 78 DEG  C.  The pressure is then reduced to 100 mm. to distil over the glycol.  The product, when examined by a colour test, is found to have increased resistance to heat degradation compared with the original crude glycol.
Patent GB-594188-A (GB)
Title: Automatic fluid distributor for xanthation apparatus
IPC: D01F2/08
Filed: 1945-06-27
Abstract: <PICT:0594188/IV/1> A xanthation apparatus or churn is provided with an automatic fluid distributer having camoperated valves which ensure that the various liquids and fluids are fed to the churn according to a specified schedule of xanthation operation.  The distributer is adapted for use with a rotary or stationary churn.  The distributer comprises two chambers 1 and 2.  Chamber 1 communicates with a carbon disulphide measuring vessel by connection 3 and valve 4, with the xanthation churn by connection 5 and valve 6, with the atmosphere by connection 7 and valve 8 and with a caustic soda solution measuring vessel by connection 9 and valve 10.  Chamber 2 communicates with the atmosphere by connection 11 and valve 12, with a vacuum apparatus by connection 13 and valve 14 and with the xanthation churn by connection 15 and valve 16.  The movements of the valves are controlled by cams 18 through valve stems 20 and by return springs 19.  The cam-shaft 17, which may be driven through reduction gearing by the rotary member of the xanthation churn, or by an independent drive, makes one revolution per cycle of xanthation operations. Cam-shaft 17 or the driving shaft may be provided with an automatic end of cycle disengaging means operated by mechanical or electrical means and associated, if desired, with a relay giving optical or acoustic signals and with churn stopping means.  The apparatus may also be provided with a valve-movement recorder.  In operation, the xanthation churn containing alkali cellulose, is connected with the vacuum apparatus by opening valves 14, 16.  The valves 14, 16 are closed and air is admitted to chamber 2 by valve 12. Valves 6 and 4 are opened to allow carbon disulphide to enter the churn.  Valves 4, 6 are shut and xanthation continues for 180 degrees of the cycle. Valve 12 is shut and the churn connected to vacuum by opening valves 14, 16.  Valves 14, 16 are shut and sodium hydroxide solution is introduced to facilitate the ultimate p  solution of the xanthate during the remainder of the cycle by opening valves 10, 6.  Just before the end of the cycle valves 14, 16, 8 are opened in order to draw air through the churn.
Patent GB-1268669-A (GB)
Title: Improvements in or relating to ingot moulds
IPC: B22D7/10
Filed: 1969-03-28
Abstract: 1,268,669. Casting ingots. SANDVIKENS JERNVERKS A.B. 28 March, 1969 [1 April, 1968], No. 16473/69. Heading B3F. When casting ingots in a mould 10 having a hot-top lining 11 the heat absorption capacity of the mould below the hot-top lining is reduced over a distance of twice the hot-top lining height measured from the mould top. This is achieved by reducing the wall thickness B of the upper part of the mould in comparison with that C of the lower part. The upper and lower parts can be separable at 27. Additionally, insulation (not shown) may surround the outside of the upper part or extend as a gasket located just above the level of the hot-top lining bottom (thus dividing the upper mould part into two sections). The wall thickness can be reduced by upward tapering (not shown). In Fig. 5 to reduce heat absorption capacity the mould wall has a cavity 21 which may be left empty or filled with insulation. The hot-top lining 11 is extended downwardly into the mould at 23.
Patent GB-844644-A (GB)
Title: Taper drive or locking pins
IPC: F16B15/06
Filed: 1957-05-24
Abstract: 844,644. Dowel or cotter-pins. VAUGHAN, F. E. May 23, 1958 [May 24, 1957], No. 16490/57. Class 89(2) A tapered cotter or dowel-pin has serrated or knurled-portions 1 separated by annular-recesses 3. The serrations may be either axial or helical, in which latter case those of one-portion may be of opposite hand to those of an adjacent-portion.
Patent GB-1516432-A (GB)
Title: Revolutionary scheimpflug visual probe
IPC: G02B27/00
Filed: 1976-04-23
Abstract: 1516432 Scheimpflug correction devices SINGER CO 23 April 1976 [1 May 1975] 16524/76 Heading G2J In a system for correction (particularly erection) of an image-plane which is tilted with respect to the axis of an optical system, a relay lens is arranged with its principal plane(s) tilted at a fixed angle to the system axis but able to rotate about said axis. In a practical form it is recognised that, by such rotation, the second image-plane produced by said relay lens may be varied in tilt with respect to the system axis over a wide range. A second tilted relay lens is arranged to rotate about the system axis, and the angle of tilt of said second lens is arranged to produce an erect third image for a particular tilt angle of the second image. The first lens is therefore rotated until the second image has the desired tilt and the second lens is then rotated to the correct position to produce an erect third image. As shown in Fig. 7 an intermediate tilted image from an objective is located at a field lens W and enters the first rotatable lens, the second intermediate image of desired tilt being located at field lens Y, and the erect image being produced by the second rotatable lens. Each rotatable lens comprises a pair of "thick lens elements" B, C; D, E; of opposed tilt, separated by field lens X, Z. This maintains the axial ray on the system axis.
Patent GB-799819-A (GB)
Title: Method of removing a protruding metal layer, suitable for use during the manufacture of magnetic recording and reproducing heads
IPC: G11B5/127
Filed: 1957-05-24
Abstract: 799,819. Removing metal by chemical action. WESTERN ELECTRIC CO., Inc. May 24, 1957 [May 29, 1956], No. 16544/57. Class 82(2) '[Also in Group XXXVI] A layer of metal is removed by repeatedly treating the metal surface with a liquid reagent to form a protective layer of a compound of the metal (such a coating being substantially insoluble in the reagent and softer than the metal) and rubbing the coated surface with a substance that is abrasive with respect to the coating but not to the metal. The invention to be applied to surfaces of composite metals where one of which forms a base that  is unaffected by the reagent and the rubbing procedure and the other is to be made flush with the base. Specifically the invention is directed to magnetic record-  ing or reproducing  heads having a short  circuited turn of copper  or silver on a ferrite  base. Such heads are disclosed in Specification 722,085 [Group XXXVI]. For working copper, hydrogen peroxide solution, a perborate solution or potassium or sodium dichromate solution is used. Silver is converted to the sulphide using, e.g. aqueous ammonium thiosulphate. When using hydrogen peroxide solution accelerators such as cupric nitrate or cupric sulphate may be present. The toroidal ferrite core is flash-coated with silver and a very thin layer of electro-deposited copper, and a stop-off lacquer applied to leave exposed a single short-circuited turn, which is then electroplated with copper to 3 mils thick. The stop-off lacquer is removed and the very thin copper removed by reverse plating and the silver now in the form of chloride, is removed by dipping in a bath of concentrated ammonia and nitric acid. It is then treated according to the invention. The apparatus disclosed consists of an endless band 6 rubbing against the metal 3 to be worked. The reagent is at 9. When working a curved surface the band and article may be rocked to allow the band to work evenly on the surface of the metal 3.
Patent GB-1036896-A (GB)
Title: Improvements in nuclear reactors
Inventor: CAMPBELL JOHN WILLIAM EDMUND
IPC: G21C7/113
Filed: 1963-04-29
Abstract: 1,036,896. Fuel elements. BABCOCK & WILCOX Ltd. April 28, 1964 [April 29, 1963], No. 16662/63. Heading G6C. A nuclear reactor moderated by a liquid containing hydrogen and/or deuterium has a control rod provided with a follower, the dimensions of which are such that there is a larger gap between adjacent fuel and the control rod than there is between adjacent fuel and the follower. Thus, by reducing the amount of moderator at the fuel boundary when the rod is withdrawn (and the follower is consequently in its place) fluctuations in thermal neutron flux are relatively small. In order to reduce such fluctuations still further, the degree of fuel enrichment may be reduced outwardly towards the fuel boundary. The core may be a square lattice of square section fuel elements, using cruciform section control rods and followers, or the fuel elements may be of hexagonal section on a hexagonal lattice, groups of six fuel elements surrounding hexagonal control rod spaces containing hollow hexagonal zirconium alloy followers and cylindrical control rods. Alternatively control rods and followers having three arms spaced at 120 degrees may be located in spaces between fuel elements of triangular or hexagonal section.
Patent GB-515492-A (GB)
Title: Manufacture of sound and picture films
IPC: G03C5/14
Filed: 1938-06-03
Abstract: 515,492. Kinematographic picture-and-sound films. I. G. FARBENINDUSTRIE AKT.-GES. - June 3, 1938, No. 16679. Convention date, June 14, 1937. [Class 98 (ii)] In the reversal development of sound and picture films with a controlled second exposure, the second exposure of both the picture area and sound track is controlled in dependence on the density of the picture area. The density of the picture area can be measured photo-electrically after the first development or after removal of the developed silver and the second exposure of the picture area and sound track controlledautomatically. The control can also be manual. The sound track may be given after the second exposure a red or infra red exposure controlled by the same photo-cell that controlled the second exposure, to reduce the effect of the second exposure on the sound track.
Patent GB-1433285-A (GB)
Title: Stabiliser system and its use for stabilising styrene polymers
IPC: C07D211/46
Filed: 1974-04-17
Abstract: 1433285 Stabilizing styrene polymers CIBAGEIGY AG 17 April 1974 [19 April 1973] 16743/74 Heading C3P  Styrene polymers are stabilized with stabilizer systems comprising (a) a defined sterically hindered heterocyclic amine and (b) at least one defined 2-hydroxybenzophenone, 2-(21-hydroxyphenyl)benzotriazole, oxalanilide, salicylic acid ester, α-cyanocinnamic acid ester, 4-(ar)alkoxy benzylidene malonic acid ester or N-(#-cyanovinyl)-2-methylindoline. The polymer may be a polystyrene, high impact polystyrene, or copolymer of styrene with butadiene, acrylic or methacrylic esters, or acrylonitrile, particularly an ABS resin. Many suitable stabilizers are listed and examples describe the stabilizing of (1 and 2) ABS resins containing 2,6-di-t-butylp-cresol and trisnonylphenylphosphite and (3) high impact polystyrene with stabilizer systems comprising 4-benzoyloxy-2,2,6,6-tetramethylpiperidine, bis - (2,2,6,6 - tetramethyl - 4 - piperidyl) - sebacate, bis - (1,2,2,6,6 - pentamethyl- 4 - piperidyl) - sebacate, 3 - n - octyl - 7,7,9,9- tetramethyl - 1,3,8 - triazaspiro[4.5]decane- 2,4 - dione cyclohexane - 1 - spiro - 2<SP>1</SP> - (4<SP>1</SP>- oxoimidazolidine) - 5<SP>1</SP>- spiro - 1<SP>11</SP> - cyclohexane, together with 2-hydroxy-4-methoxybenzophenone, 2 - (2<SP>1</SP> - hydroxy - 5<SP>1</SP> - methylphenyl)- benzotriazole or 2-ethyl-2<SP>1</SP>-ethoxy oxalanilide.
Patent GB-630174-A (GB)
Title: Apparatus for making confectionery
IPC: A23G3/02
Filed: 1947-06-25
Abstract: 630,174. Aerating confectionery. BEICH CO., P. F. June 25, 1947, No. 16762. Convention date, Feb. 28, 1945. [Classes 14(i)' and 28(i)] Aerated confectionery, e.g., marshmallow is made continuously instead of in batches by supplying compressed gas from a pump 27 and viscous confectionery from a pump 22 which meet near 14 and then pass through a perforated pipe 15 and through a porous diffuser 17 to an outlet 13. The diffuser may be of ceramic and may be in the form of a sleeve with end plates or, without the perforated pipe 15 as a pot or as thick discs, contained in a chamber. The confectionery stream and the air stream are each provided with a control valve and a one-way flap valve, e.g. 25 The frothy mixture may be used in making nougat, or fudge, or added to other ingredients.
Patent GB-824426-A (GB)
Title: Preparation for waving hair in acid medium
IPC: A61K8/46
Filed: 1957-05-27
Abstract: Hair is waved using a solution having a pH between 1 and 7 and containing a mercapto carboxylic acid ester having at least one hydrophilic group in the alcohol component.  Esters specified are glycol monothioglycollate, 1 : 3 propylene glycol mono-thioglycollate, glycerine monothioglycollate and lactic acid thioglycollate.  The solutions may include acids or salts as additives for adjusting the pH, gelatine, alcohols, wetting agents or polyvinyl alcohol, ammonium sulphite, thiosulphate, urea or thiourea.
Patent GB-1138243-A (GB)
Title: Process and apparatus for textile treatment
Inventor: CASE JOHN WILLIAM
IPC: D06B9/00
Filed: 1966-04-18
Abstract: 1,138,243. Textile treating apparatus. IMPERIAL CHEMICAL INDUSTRIES Ltd. 7 April, 1967 [18 April, 1966], No. 16904/66. Heading D1L. A process for treating open-width woven textile materials in continuous length by immersion in a boiling liquid is characterised in that the zone of ebullition of the liquid does not include the zones where the edges of the material pass around guides immersed in the liquid. The zone of ebullition is preferably positioned centrally of the material over 70% to 90% of the material width. It is desirable that the outermost 10% on each side of the material is clear of the zone of ebullition. The material may be wholly or partly of synthetic fibres e.g. polyester or polyamide and the treating liquid preferably trichloroethylene, perchloroethylene, trichlorotrifluoroethane or mixtures thereof. Apparatus for carrying out the process comprises a tank 1, material guides 2, and a heating element 8 within the tank, positioned so that the zone of ebullition does not include the zone where the edge of material passes around the guides. The heating element 8 may be an electric or steam heater element and may be positioned with a shield to reduce heat transfer to the liquid in the zone of the material edge, or it may be positioned transversely to the guide axis.
Patent GB-438266-A (GB)
Title: A tilting device for rolling mills
IPC: B21B39/22
Filed: 1935-06-12
Abstract: 438,266. Rolling. KRUPP GRUSONWERK AKT.-GES., F., Buckau, Magdeburg, Germany. June 12, 1935, No. 16976. Convention date, Aug. 2, 1934. [Class 83 (iv)] A pair of laterally and vertically displaceable tilting arms 1, 2 carrying one trough-shaped roller or a pair of conical rollers 5, 6, the arms 1 and 2 being raised to engage a billet as in Fig. 2 to tilt it through 90‹ on the roller bed 4 while the conical rollers are used to engage a billet as in Fig. 6 and tilt it through 45‹ as in Fig. 7. Each roller has a pair of cylindrical surfaces 8 or 10, either of which can be used to engage and tilt a corner of the billet, and are otherwise shaped with rounded point which may have an angle of 120‹ to hold a rhombic section symmetrically vertical.
Patent GB-760164-A (GB)
Title: An improved mixing machine for materials such as cement
IPC: B28C5/20
Filed: 1954-06-09
Abstract: 760,164. Mixing appliances. JENKINS, R. G. C. (Erren, R. A.). June 9, 1954. No. 17009/54. Class 86 A continuously operating free fall type of mixing machine, suitable for cement and mortar, comprises materials feeding means 10, a rotatable mixing drum 12 mounted on spokes 13 radiating from a rotatable axial shaft 7, a helical strip 14 secured to the inside surface of the drum and longitudinal blades 15 between the turns of the strip 14, the radial depth of the strip being less than that of the blades, and the spokes being shaped to serve as conveying members for the materials to be mixed. The spokes 13 may be adjusted so that the rate of conveyance of the material may be controlled. The feeding means 10 consist of hoppers and an adjustable vibratory feeder 11 operated by rotation of the shaft 7. A spray tube 17 for liquid is provided in addition to which the shaft 7 is preferably hollow and provided with a nozzle for fluid, protected by a sleeve 16. An external roller type of drive or gear drive may be used for the drum. The drum may be set at an angle in order to control the duration of the mixing.
Patent GB-706262-A (GB)
Title: Improvements in and relating to the production of artificial filaments
Inventor: LOWTHER ALAN GEORGE
IPC: D01F6/18
Filed: 1951-07-18
Abstract: Threads are produced by extruding a solution of an acrylonitrile polymer in an organic solvent which is soluble in carbon tetrachloride into a coagulant bath consisting of or containing carbon tetrachloride.  The polymer may be a homopolymer of acrylonitrile or a copolymer thereof with another polymerizable compound, e.g. styrene, methyl acrylate or vinyl acetate.  The solvent may be dimethyl formamide and the concentration of polymer in the solution may be between 15 and 20 per cent.  The coagulant bath may be at a temperature between 40 DEG  and 50 DEG C.  In an example a copolymer of vinyl acetate and acrylonitrile dissolved in dimethyl formamide is extruded into a bath of carbon tetrachloride at 48 DEG C.  The thread is taken from the coagulating bath at 17 metres/minute and is stretched by passage through ethanol at 60 DEG C. on to a godet with a peripheral speed of 74 metres per minute. Specifications 459,596, 461,675, 583,939, 584,548 and U.S.A. Specification 2,467,553 are referred to.
Patent GB-1035030-A (GB)
Title: Energy absorbing materials
IPC: B32B27/00
Filed: 1963-04-30
Abstract: A coated flexible web comprises a flexible web having an adhesive layer applied to one surface thereof and particles of expanded polymeric material, forming an essentially monoplanar layer, affixed to the adhesive layer whereby each of the particles is free to move with respect to adjacent particles.  A second adhesive layer may be applied to a second surface of the web and particles of expanded polymeric material, forming an essentially monoplanar layer, affixed to the second adhesive layer whereby each of the particles comprising the second layer is free to move with respect to adjacent particles. A further flexible web may be affixed to the layer or the layers of particles on one or both surfaces of the coated web, the layer or layers of particles being disposed between the flexible web or webs and the coated web.  Two coated flexible webs may be assembled with the two monoplanar layers of particles in a contiguous relationship; the article so formed may have at least one edge portion of each of the two coated flexible webs sealed together, and a third and fourth coated flexible web may be applied to the article with the monplanar layers of particles of the third and fourth webs being disposed in a contiguous relationship with the other two coated webs respectively. The expanded polymeric material may be expanded polystyrene, cellulose acetate, polyurethane, and polyvinyl chloride, may be in the form of beads with a mean diameter greater than one sixth of an inch and may have an apparent bulk density of one and a half pounds per cubic foot or less.  The adhesive, which may be GRS rubber plasticized with a hydro-carbon oil, aqueous latices of synthetic rubbers, polyvinyl acetate and hot melts based on plasticized coumarone-indene resins, may be applied to the web by reverse roll, air knife or doctor blade coating means.  The web may be of Mylar (Registered Trade Mark), biaxially oriented polystyrene, kraft paper, polyethylene, kraft paper coated with polyethylene, or aluminium foil.